The L22RNX/P is an 8" cone driver with an injection moulded metal chassis
developed for use as a high fidelity woofer unit. The extremely stiff aluminum
cone gives tremendous bass precision. The cone and the low loss rubber
surround show no sign of the familiar 500-1500 Hz cone edge resonance and
distortion associated with soft cones. On the other hand, the cone break up
modes at higher frequencies call for special attention in the crossover design
work. A long, high temperature voice coil wound on an aluminium voice coil
former gives low distortion and a high power handling capacity. The phase
plug reduces compression due to temperature variations in the voice coil,
eliminates resonances that would occur in the volume between the dust cap
pole piece and increases the power handling capacity.
The large magnet system provides reasonably high efficiency and low Q.